Media type: E-Article Title: Présentation Contributor: Marre, Alain [Author] Published in: Travaux de l'Institut Géographique de Reims ; Vol. 31-32, n° 123-124, pp. 3-5 Language: French Keywords: intro Origination: Footnote: Access State: Open Access Rights information: Attribution - Non Commercial - No Derivs (CC BY-NC-ND)